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(tee-tee-why-el)
interjection
TTYL can mean multiple different things, but there are two main things that it means.
(#1) An abbreviation for 'Talk To You Later.' (See Ex.1)
(#2) A set of four letters from the English alphabet. (See Ex.2)
(Ex.1)
Karen and Suzy are texting, but Suzy has to leave for her dance meet.
Suzy: Oof sis, I gotta go to my dance meet.
Karen: Baiiii!
Suzy: TTYL!

(Ex.2)
John is taking an eye test at the optometrist.
Optometrist: Okay Mr.Jones, can you read that row of letters for me?
John: T...T-Y....L?
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Talk to you later(s) or TTYLS, Used when saying goodbye to a friend or ending a phone conversation.
by tericon33 September 03, 2009
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when someone has to leave, they formally say ttyl (talk to you later)
Bye Mary, ttyl

formally used in instant messaging and game messages
by Mike Cicero December 26, 2007
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Talk to you later.

A word that keyboard dyslexic teenagers use to say 'talk to you later'.
omg rly? ttyl.
by NormannTheDoorman August 12, 2012
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a common acronym used in mainstream media that stands for talk to you later
by so dank December 06, 2016
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